LEMON Manuals: Even more car manuals for everyone
Home >> Saturn >> 2008 >> Sky Base, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays & Gages >> Diagnostic Information & Procedures >> DTC P0463 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the fuel level sensor.
  2. Ignition OFF, test for less than 1 ohm between the fuel level sensor low reference circuit terminal C and ground.
    • If greater than the specified value, test the circuit for a short to voltage or an open/high resistance. If the circuits tests normal, replace the ECM.
  3. Install a 3-amp fused jumper wire between the fuel level sensor signal circuit terminal B and the fuel level sensor low reference circuit terminal C. Verify the Fuel Tank Level Remaining parameter is greater than 98 percent.
    • If less than specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuits test normal, replace the ECM.
  4. If all circuits test normal, perform the fuel level sensor component test before replacing either the fuel level sensor.
scientia non olet · About LEMON Manuals